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(!!!) (Best Single) 8417 Sylvania NOS (121ma)

(!!!) (Best Single) 8417 Sylvania NOS (121ma)

$ 139.99

8417 Sylvania NOS 1970 era

Iplate= 121ma

Gm= 24,500

 

 

Tested on Amplitrex:

Vplate=300V

Vscreen=300V

Vgrid=-12V

Good Ma range 90-110ma

Good Gm = 20-23,000

 

Recommended For:

- UFO

- Fisher SA-1000

- Dynaco

- Quicksilver

- Dynaco Mark VI introduced in 1976

- Gibson

- Bogen

- Harmon Kardon

See more: vacuum tube
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